you're on the "high" ping non-interleaved ping rate for non-congestion, i've noticed some people seem to have like 6 msec pings on adsl. whereas other people are more ilke 9/10 ? .. i'm also on more like 9/10 ping.. does anyone know what causes this?

It appears to be somewhat improved from my observations, though whatever the issue is is still present. Whereas mine was up to high 40s in the evenings it now looks like it's down to ~high 30s. This appears to be backed up be my Truenet graphs which have dropped a bit, but are still showing a bit of a nasty peak from 8pm-11pm. I'll check again tonight manually.

i've noticed some people seem to have like 6 msec pings on adsl. whereas other people are more ilke 9/10 ? .. i'm also on more like 9/10 ping.. does anyone know what causes this?

Number of hops between your cabinet/exchange and the regional aggregation point where your Chorus hands over to your ISP's network would be the biggest factor.

Some ISP's have lots of handover points all round the country, some handover only in Auckland.

Snap used to only handover in Christchurch so North Island customers had to be back-hauled all the way back to Christchurch, they built an Auckland POP last year or year before.

yeah, but i mean being a suburb over shouldn't make 3 or 4 msec difference should it?

from what i can tell there's slightly higher latency on cabinets then exchanges. then is it just that some exchanges are better connected than others? i know snap only have handover in auckland and christchurch, but that shouldn't make much difference in either of those regions?

yeah, but i mean being a suburb over shouldn't make 3 or 4 msec difference should it?

It depends.. Are they on the same ISP? Same base connection service EUBA vs BUBA?

Neighbouring suburbs could easily be in different exchange area's, with different activity/congestion levels etc.

A few ms difference is nothing at the end of the day and residential DSL is best effort.

well, i'm using slingshot, snap, and orcon for comparison's sake, and the lowest latency has been snap euba/exchange followed by slingshot llu / orcon euba/exchange, and the highest latency has been snap euba/cabinet followed by orcon euba/cabinet.

and comparing two lines that have switched from cabinet to exchange, both went up in latency. i realise it's best effort, and only makes a slight difference, and that the difference been euba low interleaving and no interleaving is more noticable. i'm mostly just curious how latency ends up being higher.

in earlier tests i seem to recall interleaving off was about 10% faster for web browsing average page load times than interleaving low. and about 20% faster than interleaving on. so it's probably only a few % difference in the real world.

that said that's in a higher parallel activity such as web browsing, and things like NFS (network file system) tend to be much more serial and latency-bound.

We currently have this under investigation by Chorus, we expect that the impact may be wider than just Snap customers.

In regard to the EUBA/BUBA question, all Snap customers on ADSL2/ISAM's are automatically transferred to EUBA by our provisioning system as soon as it detects that they are on capable hardware

Also we have multiple handovers over the country for ADSL2/VDSL (and HSNS Business services) in the South Island in all towns where this is available, and in the North Island in many of the main centres and multiple in Auckland. However on ADSL1/BUBA you will either be handed over in Auckland or Christchurch, generally routed to the North.

There was congestion on one of the Ethernet links that goes from Mt Albert to Mayoral Drive. Anyone on an exchange that aggregates at Mt Albert (eg Three Kings) was affected if they were going over the affected link.